Detoxification of hemicellulosic hydrolyzate from olive tree pruning residue

Mateo, Soledad; Roberto, Inês Conceição; Sánchez, Sebastián; Moya, Alberto J.

doi:10.1016/j.indcrop.2013.04.046

Cited by 79 publications

(59 citation statements)

References 35 publications

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“…Thus, CABH is a favorable medium for microbial routes due to these carbon sources present. Comparing with literature data [18,26], it was noted that the acid hydrolysis was performed to obtain an efficient treatment of the sugars of interest. Dilute-acid hydrolysis is probably the most commonly applied method among the chemical pretreatment methods used.…”

Section: Cashew Apple Bagasse and Cashew Apple Bagasse Hydrolysate Comentioning

confidence: 90%

“…Acid hydrolysis using diluted concentrations of acids is a very widespread treatment due to its efficiency in the process of obtaining sugars. However, products that are considered toxic to microbial growth, such as acetic and formic acid [11,18], are formed. In addition to product yield, the concentration of inhibitory compounds in the fermentation medium should be considered a parameter, due to the fact that the presence of toxic compounds in the substrate may lead to incomplete or prolonged fermentation, thus leading to an inefficient process.…”

Section: G Modelmentioning

confidence: 99%

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Xylitol production from cashew apple bagasse by Kluyveromyces marxianus CCA510

et al. 2015

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Section: Cashew Apple Bagasse and Cashew Apple Bagasse Hydrolysate Comentioning

confidence: 90%

Section: G Modelmentioning

confidence: 99%

Xylitol production from cashew apple bagasse by Kluyveromyces marxianus CCA510

et al. 2015

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“…Figure 2 shows the results of vacuum evaporation by different authors [37,50,62,63,116,117,118]. A different colour in columns has been used in relation to the lignocellulosic raw material.…”

Section: Physico-chemical Detoxification Processesmentioning

confidence: 99%

Physico-Chemical Alternatives in Lignocellulosic Materials in Relation to the Kind of Component for Fermenting Purposes

et al. 2016

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The complete bioconversion of the carbohydrate fraction is of great importance for a lignocellulosic-based biorefinery. However, due to the structure of the lignocellulosic materials, and depending basically on the main parameters within the pretreatment steps, numerous byproducts are generated and they act as inhibitors in the fermentation operations. In this sense, the impact of inhibitory compounds derived from lignocellulosic materials is one of the major challenges for a sustainable biomass-to-biofuel and -bioproduct industry. In order to minimise the negative effects of these compounds, numerous methodologies have been tested including physical, chemical, and biological processes. The main physical and chemical treatments have been studied in this work in relation to the lignocellulosic material and the inhibitor in order to point out the best mechanisms for fermenting purposes. In addition, special attention has been made in the case of lignocellulosic hydrolysates obtained by chemical processes with SO2, due to the complex matrix of these materials and the increase in these methodologies in future biorefinery markets. Recommendations of different detoxification methods have been given.

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“…It was reported that three-, four- and fivefold concentrations were used and the best conditions to perform the bioconversion consisted in using a threefold concentrated hydrolysate supplemented with ammonium sulphate and rice bran extract. However, higher concentration levels could be used in different hemicellulosic hydrolysates as reported in some studies (Salgado et al 2012; Carvalho et al 2006; Mateo et al 2013). In this study, threefold concentration was recommended and used in the experiments including combined detoxification methods such as evaporation, overliming and activated charcoal.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of some lignocellulosic byproducts of food industry for microbial xylitol production by Candida tropicalis

Eryaşar

Karasu-Yalcin

2016

3 Biotech

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Some lignocellulosic food byproducts such as potato peels, wheat bran, barley bran and chestnut shells were evaluated as potential sources of xylose for microbial xylitol production by yeasts. Potential yeast strains were selected after screening xylitol production of some indigenous yeasts in a defined fermentation medium. Candida tropicalis strains gave the highest results with 83.28 and 54.07 g/L xylitol production from 100 g/L xylose. Lignocellulosic materials were exposed to acid hydrolysis at different conditions. Chestnut shells gave the highest xylose yield and the hydrolysate of chestnut shells was used in further experiments in which xylitol productions of two potential C. tropicalis strains were investigated. Combined detoxification method including evaporation, overliming and activated charcoal with the use of threefold concentration and also yeast extract supplementation suggested to be efficient for both growth and product formation in chestnut shell hydrolysate in which 40 % xylitol yield was obtained. It was concluded that detoxified and fortified chestnut shell hydrolysate could be a potential medium for xylitol production.

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Detoxification of hemicellulosic hydrolyzate from olive tree pruning residue

Cited by 79 publications

References 35 publications

Xylitol production from cashew apple bagasse by Kluyveromyces marxianus CCA510

Xylitol production from cashew apple bagasse by Kluyveromyces marxianus CCA510

Physico-Chemical Alternatives in Lignocellulosic Materials in Relation to the Kind of Component for Fermenting Purposes

Evaluation of some lignocellulosic byproducts of food industry for microbial xylitol production by Candida tropicalis

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